| 简介 |
PROBLEM TO BE SOLVED : To provide an easily reusable and inexpensive adsorbent with superior adsorptivity of fluorine, boron and arsenic, sedimentation property, and handleability, and to efficiently remove fluorine, boron and arsenic in water to be treated using the adsorbent. ŽSOLUTION : The adsorbent of fluorine, boron or arsenic is a rare earth metal compound carried on bentonite. The water treatment method of adsorbing and removing fluorine, boron or arsenic brings the water to be treated into contact with the adsorbent at a given pH value. ŽCOPYRIGHT : (C)2005, JPO&NCIPI Ž |
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